CVE-2026-78253

Uncontrolled recursion in QXmlStreamReader::readElementText() in Qt Group Qt allows attackers to cause a denial of service (application crash via stack exhaustion) via a crafted XML document.

  • Published Sep 23, 2026
  • CVSS 2.3 low
  • 0.3% chance of exploitation in the next 30 days (EPSS)

Affected software

CVE-2026-78253 at the National Vulnerability Database